HCD-MD555 - Sony Audio Service Manual (repair manual). Page 8

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SECTION 2
SERVICE NOTE
CD-TEXT TEST  DISC
This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display.
To check, perform the following procedure.
Checking Method:
1.
Turn ON the power, set the disc on a tray, and chuck the disc.
2.
Press the  
·  button and play back the disc.
3.
The following will be displayed on the fluorescent indicator tube.
Display : 1kHz/0 dB/L&R
4.
Rotate   MULTI JOG   dial or press   
= AMS +  of a remote commander to switch the track. The text data of each track will be
displayed.
For details of the displayed contents for each track, refer to “Table 1, 2 : CD-TEXT TEST DISC Recorded Data Contents and Display”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it.
Table 1 :
CD-TEXT TEST DISC Recorded Data Contents and Display (TRACKS No. 1 to 32:Normal Characters)
* Other channel is infinity zero.
TRACK
No.
Recorded contents
Display
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1kHz/0dB/L&R
 20Hz/0dB/L&R
 40Hz/0dB/L&R
 100Hz/0dB/L&R
 200Hz/0dB/L&R
 500Hz/0dB/L&R
 1kHz/0dB/L&R
 5kHz/0dB/L&R
 7kHz/0dB/L&R
 10kHz/0dB/L&R
 16kHz/0dB/L&R
 18kHz/0dB/L&R
 20kHz/0dB/L&R
 1kHz/0dB/L&R
 1kHz/-1dB/L&R
 1kHz/-3dB/L&R
 1kHz/-6dB/L&R
 1kHz/-10dB/L&R
 1kHz/-20dB/L&R
 1kHz/-60dB/L&R
 1kHz/-80dB/L&R
 1kHz/-90dB/L&R
 No-signal emphasis: ON//L&R
 No-signal emphasis: OFF//L&R
 400Hz+7kHz(4:1)/0dB/L&R
 400Hz+7kHz(4:1)/-10dB/L&R
 19kHz+20kHz(1:1)/0dB/L&R
 19kHz+20kHz(1:1)/-10dB/L&R
 100Hz/0dB/L*
 1kHz/0dB/L*
 10kHz/0dB/L*
 20kHz/0dB/L*
Same as the values shown in the left column.
Infinity    Zero    w/o    emphasis // L&R
Infinity    Zero    with    emphasis // L&R
Same as the values shown in the left column.
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Display

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